--On January 6, 2010 5:38:04 PM +0000 Tony Finch <dot(_at_)dotat(_dot_)at>
I think there is value in just being able to do easy MUA configuration
for an email address. Something based on DNS is going to be easy to
deploy. SRV RR are more widely deployed and supported, that is why
draft-daboo-srv-email is using them.
But what is the motivation to implement and deploy the SRV record scheme?
An MUA can do better (better coverage, easier deployment) by probing
several common setups until it finds one that works. Outlook 2007 already
does this (sorry, can't find a more detailed description than
<http://support.microsoft.com/kb/287532>) and it looks like Thunderbird
has something similar in hand. All it requires from the operator is to use
common host names for the various servers. So I think this draft does too
little too late.
I disagree. Just because clients have been forced to do things using
guesswork up to now does not mean we should leave them and any new clients
to do the same thing. I have heard from at least one developer who is
working on implementing SRV support for Thunderbird.
The SRV solution is simple to implement - most OS network libraries now
provide simple access to SRV record results. Site and domain admins these
days are much more comfortable with setting up SRV (required for services
like XMPP). So I think SRV represents a simple solution that can be adopted
in a reasonable timeframe.